if you look at content of letters sent to senator wicker and president obama, they read, quote, to see a wrong and not expose it to become a silent parter to its continuance. very possible he was refering to alleged trafficking in body parts. a couple questions remain unclear this morning. that is, when would a letter-writing campaign allegely become potentially deadly with inclusion of ricin in those letters and patti ann, where would he have gotten his hands on that ricin? he will probably appear in federal court here in oxford, mississippi this afternoon. patti ann: that is quite a big leap to take from writing e-mails and lersz to something potentially deadly. what exactly is going on at his house right now, john? >> reporter: the fbi is still investigating his case as you imagine. they have the area around his house in corinth, mississippi, all blocked off. they're treating it as potential pie owe hazard as they look for more evidence and the possible source of that ricin. it is fairly easy to make low-grade ricin by grinding up castor beans. according to the fbi this was fairly r